Support and tie for concrete-reinforcing bars.



G. R. SCHOENTHALER.

mom AND TIE 1' a CONCRETE RBINPORCING BARS.

APPLICALIOH HLED MAY 31,1913.

1,] l 99123 Patented Dec.1,1914

'i SHEETS-SHEET l.

1 TUNCRS'IE REINFORCXNG BARS,

FILED MAX 31,1913.

Patented Dec. 1` 1914 2 SHEETS-SHEET 2.

anomala scHoENTHALEn, or cHmAeo, ILLINoIs.

snrronr AND 'rm ron concnnirnnnmroacmc sans.

' spammen f meer ramt.

Patented Dec. 1, 1914,

Winsum nea my' si, ma' serial No. 771,115.

skilled in the art to which it appertains to makeand use the same,reference being had tothe accompanying drawings, forming part of -thisspecification, in which- Fi re 1 is a perspective view of a combine.\concrete reinforcing bar support and tie of my improved construction.Figs. 2, 3, and are side elevational views of modified forms of thecombined support and ceilings, walls tie. Fig. 5 is a perspective view oa further modified form of the combined support and tie., Figs. 6, 7, 8,9, 10, and 11 are perspective views of modified forms of my improvedsupport and tie, whichviews show the combined support and tie formed ofa piece of sheet metal, the same being cut and bent into proper shape.Fig. 8 1s a side elevational view of the form of support and tie seen inFig. 8. Fig. 9l is a side elevational view of the form of combinedsupport and tie seen in Fig.b 9. Fig. 12 1s a side elevational view of acombined support and tie of my improved construction used in connectionwith reinforcing bars occupying a vertical plane, as is the case in thereinforcement of concrete walls.

My invention relates generally to rein- Eorced concrete construction andmore particularly to a support and tie for the metal rods used inreinforcing concrete floors,

and like structures.

My present invention is an improvement upon the combined support and tiedisclosed in my cowpendinlg a plication filed April 4, 1913, serial o.58,837.

In reinforcing concrete l'loors, ceilings, and walls, it is desirableand '1n nearly all instances, essential, that the reinforcing rods besupported in a plane, above or away from the temporary flooring or formupon which the concrete islaid and lto this end I have devised 'acomparatively simple, strong and ine ensive one piece support and tie,which can. readily combined?? with reinforcing rodsand which `willmaintain the same a ilbsmntial distance above the floor or form,

while the concrete iniplastic condition is i being poured or distributedthereupon.

The principal object of my invention is to provide a combined supportand tie which will automatically grip and engage the supported rod orrods to eliectively hold the same in proper position, which grippingeffect is obtained by reason of the Weight of the supported rods,4 whichweight aeting upon the support and tie causes the same to perform thefunctions of a lever with one end resting upon the surface'of the falseWork or form and with the other end gripping the sup orted rod.

Where the kcombine support and tie is utilized in connection with a pairof crossed rods, the upper portion of the device grips the upper one ofthe rods and the lower rod forms a fulcrum for said device.

Other objects of my invention are, to form a combined support or chairfrom wire or sheet metal, which can be readily `cut and bent to propershape; to provide a device which can be readily combined with thereinforcing rods, and which will effectively hold said rods againstlengthwise movement; and, to provide a device which isl practicallyskeleton in form and around which the lastic concrete `will readily flowso that sai device will be wholly embedded -in the concrete when thesame has become hardened. W'ith the above and other objects in View myinvention consists in certain novel features of construction andarrangement of parts hereinafter more fully described and claimed. i

In the form of the device shown in Fig. 1 the combined support and tieis 'formed from a single length of wire. shaped so as to support and tietogethertwo reinforcing rods which are arranged substantially at rightangles to each other. In this form of the device a section of Wire ofsuitable size and length is bent at its center to form a semicircularpart 1, which is adapted to engaeover and grip the upper reinforcing roA. From this bent central part 1, a section of Wire extends downward toform theparallel legs 2 which occupy an angle of approximately 45relative to a vertical plane and the lower portions of these legs arebent into semicircular form to provide curved seats 3 for the lowerreinforcing rod B. From these curved seats the wire of "ight angles tothe planes occupied by the "rtical legs of the device.

In Fig. ll I have illustrated a combined .support and'tie of the formseen in Fig. 1 and which support and tie is applied to a pair ofreinforcing lrods which occupy a vertical plane as is the case in thereinfrcenient of walls and the like. Where such construction is carriedout the 'ends of the longer legs 15 of the device bear against the faceof the false wall or form and the verticallx1 disposed rod C is forcedagainst the lzorizontally disposed rod D by a wedge or key 1G insertedlbetween the outer portions of the pairs of legs of the device. This arArange-ment effectually tics the two rods together and holds the same aproper distance away from the surface of lthe false wall or form so thatsaid rods vare embedded in the concrete in the desired planes. In thisform of the device the tying together of the rods is eiectcd by meansot' the. wedge or key instead of by the weight of the rods as is thecase where the rods are horizontally disposed.

)L device of my improved construction is comparatively simple, can becheaply' manufactured, is readily applied to reinforcing rods andautomatically grips and ties the same 'together by reason of the weightof said rods.

The ,device when properly applied performs the functions of a lever, andthe gripping action on the rods obtained by the weight ot said rodsreact-ing through the support, which latter fulcrums 'upon the lower oneof the supported'rods, thus transmitting the resulting reaction throughleverage to toe upper rod, consequently tying the two rods together andsupporting the same the desired distance abpve the surface of the falsework or form.

It will be readily understood that minor changes in the size7 forni andconstruction of my improved support and tie can bo made and substitutedigor those herein shown and described, without departing from the spiritof my in'v'entii'in7 the scope of which is Set forth in the appendedclaims.

claim: v

l. in a. device. of the class described, a pair of vertically disposedparallel legs provided with seats adapted to receive a reinforcing rod,a second a-ir oi' parallel legs projecting upwardly and outwardly fromthiA iii-st n'ientioned legs, the upper en'ds of which upifarill-v andoutwardly projecting legs are united to form aseat for a second forcingrod which is positioned on top Vl-at right angles to the first mentionedreinforcing rod, and which seat adapted to engage the second mentionedreinforcing rod at a point a substantialA distance to one side of thevertical plane occupied by thev first mentioned reinforcing rod, wherebythe Weight of' both rods reacting through the pairs of legs causes thedevice to grip both reinforcing rods.

9.. A device of prising a pair of vertically disposed parallel legs, asecond pair of parallel legs formed integral with and projectingupwardly and outwardly from the -irst mentioned legs, the

the class I described com prising a pair of parallel inclined legs, the

upper ends of which are united to` orm a seat for a reinforcing rod, thelower portions of said legs being curved-upward to form a pair ofhorizontally alined seats.

adapted to receive' a fulcrum member, and .y

a pair of vertically disposed parallel legs .integral with and extendingdownwardly from the lower portions of said inclined legs, the seat atthe upper ends 'of the inlclincd being located a substantial distance toone side of'the ulcrur'n, whereby the weight of the supported rodAreacts through the device and causes the'sa-me-to grip said rod.'

4. In a device ofthe class described a continuous strip of metal bent atits central portion to form a Seat and two parallel members extendingdownwardly at au angle therefrom, said parallel membersA `being ex-ltended upwardlyat their lower portions to form a pair of horizontallyalined seats, and thence downwardly to form a pair 'of rertical legs,the `first mentioned scat being. located at a substantial distance toone side of the second mentioned seat whereby tho weight of reinforcingrods located in said seats will effect a tilting action and cause thesaid seats to hold the rods in position.

In testimony whereof I hereunto afliX rny signature in the presence oftwo witnesses,

this 27th day of Mayi 1913.

GEORGE R. SCHOENTHALER.

lVitnesscs M. P. SMITH, M. A. HANDEL.

